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topjm [15]
3 years ago
12

Qual o valor de Pi ?

Mathematics
1 answer:
Igoryamba3 years ago
3 0
<h2>Hello my friend.</h2>

The Pi value is approximately equal to 3.14.

<h2>I hope I have helped a lot.</h2>
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Elanso [62]

Answer:

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3 years ago
A test worth 125 points has 49 questions on it. Multiple Choice questions are worth 2 points each and short answer questions are
Charra [1.4K]

Answer:

There were 40 2-point questions and 9 3-point questions.

Step-by-step explanation:

To solve this situation, write two equations. One for the number of questions and one for the number of points.

Let x be the number of 2 point questions.

Let y be the number of 5 point questions.

x + y = 49

Now since x are each worth 2 points, the total points is 2x.

And since y are each worth 5 points, the total points is 5y.

So 2x + 5y = 125. Substitute one of the equations into the other to solve for the variables.

x + y = 49 becomes x = 49 - y. Substitute it.

2(49-y) + 5y = 125

98 - 2y + 5y = 125

98 + 3y = 125

3y = 27

y = 9

Substitute y = 9 back into the equation x = 49 - y to find x.

x = 49 - 9

x = 40

5 0
3 years ago
The sum of three numbers is 35. The first number is three less than the second and the third is two more than 4 times the second
saul85 [17]

Step-by-step explanation:

x + y + z = 35 \\ x = y - 3 \\ z = 4y + 2 \\  \\ (y - 3) + y + (4y + 2) = 35 \\ 6y - 1 = 35 \\ 6y = 36 \\ y =  \frac{36}{6}  \\ y = 6 \\  \\ x = y - 3 \\ x = 6 - 3 \\ x = 3 \\  \\  z= 4y + 2 \\  z= (4 \times 6) + 2  \\ z = 26

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3 years ago
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The correct answer is c.
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2 years ago
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It would be 8.5 because all you have to do is add 3 to 2.5 then you’ll get 5.5 then do that one more time.
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